US2101747A - Tally roll mechanism - Google Patents

Description

Dec. 7,

Filed Dec. 51, 1936 2 Sheets-Sheet l INVENTOR fill/5S Ii NAN/V.

/ ATTORNEY 7,1937. MANN 2,101,?

TALLY ROLL MECHANISM Filed Dec. '31, 1936 2 Sheets-Sheet 2 INVENTOR /V/L8/i/VA/VN.

Patented Dec. 7, 1937 OFFICE 2,101,747 1 v TALLY ROLL MECHANISM Miles H. Mann; Hartford, Conn, assignor to Underwood Elliott Fisher Company, New York, N. Y., a corporation of Delaware Application December 31, 1936, Serial No. 118,509

10 Claims.

This invention relates to tally roll mechanism for use on typewriting machines particularly those embodying a roller-platen.

Theinvention has for one of its objects to pro- 5 vide a simple, inexpensive, durable and reliably operative device for mounting and feeding tally strips of varying widths in such manner that the tally strips may be located at various points lengthwise of the roller-platen.

Formerly it was necessary that the numerous branches of a typewriter manufacturing concern, carry large inventories of parts to enable them to supply purchasers with a tally roll mechanism suited to the particular uses of the purchaser. The tally mechanism is usually sold as an accessory to a more or less standard machine. If a purchaser desired to use a 2 Width of tally strip a particular mechanism was organized to accommodate this demand. If a purchaser desired to use a 6" width of tally strip another set of inventory parts would be used to organize the necessary device to meet this demand, and so on throughout the range of tally strip widths.

In the patent to Thieme No. 1,897,284telescoping tubes and spindles are shown which represent preliminary steps taken toward cutting down the large parts inventory. V

In the patent to Lentz No.,1,913,125 there are shown adjustable end frame pieces having short square studs adapted to fit into the ends of tally strip rolls having correspondingly squared recesses. This patent represents another step in' the direction of cutting down large part inventories.

The present invention has as one of its objects to eliminate all telescopic adjustments and eliminate the necessity for specially apertured tally roll cores and to reduce the device to a low min-' imum of necessary inventory parts While at the. same time retaining an effective drag mech-v anism for the tally roll supply and providing an effective wind-up mechanism adapted to work with equal efiectiveness with anywidth of tally stripthroughout the entire possible range.

The present invention embodies an auxiliary frame adapted to be mounted upon a rollerplaten frame and adjustable as a unit therealong to obtain desired location of the tally strip relative to the roller-platen. This auxiliary frame or rod which may be considered a part of the 55 roller platen frame. The spring-pressed arms carries a pair of relatively adjustable members serve as drags for the tally supply roll to prevent over-feed of the tally strip. The auxiliary frame also carries a wind-up roll for the tally strip which is driven from the line space mechanism of the typewriter through suitable gearing includ- "5 ing a clutch by means of which the drive to the wind-up roll may be completed and interrupted at will. The invention also contemplates the easy addition when desired of a wind-up roll for the carbon strip and to this end the auxiliary 10 frame is provided with means for locating and attaching end brackets for a carbon wind-up roll shaft which latter carries a knob so that the shaft may be intermittently rotated by hand to take up excess carbon strip. By the means described it is possible to accommodate various widths of carbon strip within the ends of the auxiliary frame and apply an effective drag on the tally supply roll by simple adjustments of V the two locating members which have a free range of movement within the ends of the auxiliary frame. One standard tally wind-up roll serves for all of the varying widths of the tally strips.

In the accompanying drawings:

Fig. 1 is a view in perspective showing a roller- 25 platen and its frame and the improved tally roll mechanism associated therewith. In this figure the metal parts which serve as spool heads for the tally supply roll are omitted in the interest of clearness. 0

Fig. 2 is a view in perspective showing the spool heads that are omitted from Fig. 1, and

their relation to the supporting rod therefor.

Fig. 3 is a view in front elevation of the tally roll mechanism with certain portions broken away 31- to show in more detail the means for assembling the auxiliary frame and. forming the tally strip wind-up roll.

Fig. 4 is a view in longitudinal section of the clutch mechanism. 40

Fig. 5 is a view partly in end elevation and partly in central cross section fore and aft of the machine, of the mechanism shown in Fig. 1.

' Fig. 6 is aview in perspective, enlarged from thesho-wing of Fig. 1, of one of the adjustable locating members in operative relation with a tally supply spool. V V

Fig. 7 is a View in detail of the driving gears for the tally strip wind-up roll showing the means for imposing a drag on this gearing to prevent over-travel of the wind-up roll.

Referring now more particularly to the drawings, there is indicated at 20a conventional type bar striking the front sheet of a set which, for illustrative purposes may comprise a bill or statement sheet 2| next in the rear of which is carbon sheet 22, to the rear of which is a record sheet 23, a carbon sheet 24, and a tally strip 25, in the order stated. The tally sheet in the illustrative embodiment lies next to a roller platen 26 which has its ends mounted in conventional end plates 21 and 28, carrying respectively bracket arms 29 and 30 which support rods 3| and 32.

The end plates 21 and 28, the brackets 23 and 36 and the rods 3| and 32 may be considered for the purposes of this case as a roller platen frame and on this frame is mounted an auxiliary frame indicated generally by the reference character 33. The auxiliary frame comprises spaced end plates 34 and 35 connected and held in spaced relation by tie rods 36 and 3?. The end plates 34 and 35 are provided with circular holes 38 and 39 to receive the rod 3|, and the end plates are provided at the rear with notches one of which is indicated at 40 for receiving the rod 32. Thus the auxiliary frame is supported on the rods 3| and 32 and may be shifted to different positions lengthwise of the platen. A conventional platen frame rod 4 I which stands be tween the end frames 21 and 28 carries spaced spiders 42 and 43 which are notched to receive the rods 3i and 32. These spiders are connected by a bar 44 serving to hold them indefinite spaced relation lengthwise. Each spider has a forwardly extending arm 45 which carries a friction roller 46 adapted to bear on the platen.

Between the end plates 34 and 35 of the auxiliary frame a pair of relatively adjustable locating members 56 and 5| are mounted on the tie rods 36 and 31, tie rod 3'! passing loosely through holes 52 in the locating members at the rear and tie rod 36 passing through holes 53 at the forward ends of the locating members, which ends are provided with bosses 54 that carry set screws 55 for securing the locating members in adjusted positions. It will be obvious that the members 50 and 5| may be adjusted within the auxiliary frame to meet the requirements of any width of tally strip up to the maximum which may be accommodated by the frame itself. Each locating member has pivoted thereon at its inside face an arm having a laterally offset end 6| with an inclined engaging face 62. When no tally supply roll is in position to be acted upon by arms 66, springs 63 hold the arms against stop pins 64.

Upwardly and rearwardly of the end frame pieces 34 and 35 are inwardly projecting rotatable studs 65 and 66. Stud 65 projects outwardly a slight distance beyond the frame piece 34 and has secured to it a gear 57. Arcuate pieces in and 1| conforming to the contour of the studs have their ends overlying these studs and secured thereto by screws I2. The arcuate pieces are so formed as not to extend the complete circumferential distance, providing thereby slots I3 and I4 adapted to receive the leading end of a tally strip to engage the strip so that it may be wound up on the arcuate members as they serve as a core. The gear 61 is in mesh with a gear I5 which is loosely mounted on a sleeve I6 which passes through end plate 34 and is held in position thereon by a nut TI threaded onto the inwardly projecting end of sleeve I6. The rod or shaft 3| passes through the sleeve I6 which latter is connected for rotation with this rod by means of a screw I8 forcing a soft metal pin I9 against the exterior of the shaft, the screw I8 being threaded into a flange on the sleeve.

The usual line-spacing ratchet wheel is indicated at 8| and is mounted on the platen shaft 82. A drive-pawl 83 is pivotally mounted on a slide 84 which is moved rearwardly upon operation of a line space lever 35 and returned forwardly by a retractile spring 85. The slide 84 has an upstanding lug 31 to which there is pivotally connected one end of a link 83, the other end of which is connected to an arm 89 loosely mounted on the shaft 3|. The arm 89 carries a pivotally mounted spring-pressed pawl 9!! which engages a ratchet wheel 3| that is fixed on the shaft 3|. By operation of the line space lever slide 34 is moved rearwardly, the ratchet wheel BI is turned to linespace the platen and the ratchet wheel is turned to rotate shaft 3| and gear I5 thus transmitting rotary movement to the tally wind-up roll through gear 6'? provided the clutch now to be described is in engagement.

The clutch comprises diagrammatically opposed pins I50 loosely positioned in flange 83 of sleeve IS. The ends of these pins may be projected from a position within the flange 3|) to a position beyond the flange and into engagement with holes Ii]! in the gear I5. Thus the gear I5 which is loosely mounted in the sleeve I6 may be coupled for rotation with the sleeve and when so coupled the gear I5 will be rotated in accordance with movements of the line space lever and rotation of shaft 3|. The pins I56 are fixed in a spider I32 which is located in a clutch-operating knob I33. Contained within this knob is a coil spring Hi4 formed circular and having its ends joined together so that the spring is under tension causing it to contract on the sleeve 16. The latter has a detent groove I05 which, when the knob I 03 is pulled to the left, receives the spring I04 after it has been expanded over a cam face I66 of the sleeve I5 and has again contracted on to the sleeve. A spring band I01 sprung on to the sleeve I6 at groove I68 serves as a limiting stop for the clutch knob I53. The spider I02 serves to pick up the. spring as the knob is moved to the left and urge the spring over the cam face I06 whereupon the tendency of the spring to contract completes the detenting operation and the knob IE3 is held tothe left with the pins I00 withdrawn from clutching relation with the gear I5.

As'shown in Fig. 7 of the drawings, a suitable drag is imposed upon the gear 61 by means of a bent spring clip I09 one end III of which is secured to the outer side of end plate 34 of the auxiliary frame and twofingers I II of which bear with some pressure on a face of the gear 67.

In the operation of the above described mechanism the rod 32 is removed from the rollerplaten frame including spider 42 and 43, and a tally strip supply roll TS is mounted on this rod. The preferred form of mounting is as shown in Fig. '2. Opposite-end spool-heads H5 and H6 are adapted to fit loosely on the shaft or rod 32 and each spool-head has a short split tube II? which expandsand grips the inner side of the hollow fibre core TC of the tally supply roll. The peripheries of the spool-heads are inclined and knurled thus adapting them for engagement by the inclined engaging faces of the ends 6| of arms 60. Whatever width of tally strip is used the spool-heads are forced into the opposite ends of the core and the tally supply spool is thus loosely assembled on the'shaft 32 which is then restored to position in the platen frame. The auxiliary frame 33 is then shifted to desired position along the platen frame in the manner of a rough adjustment for the position of the tally strip on the platen and locating members 50 and are adjusted within the auxiliary frameto engage the'inclinedfaces 62 of the spring-pressed the endsyofithe tally strip. and its accompanying carbon are brought down around the platen, as

shown in Fig. Ea -of the drawings, and upwardly towardthe tally wind-up. roll.; The leading end of the tally strip is passed through the slots 13- 14 f the tally.,wind -up roll-and a turn of the leading end is ,rotated to bindwith a following portion of the. strip. The leading end of the carbon isusually. left free and hangingover thewinduproll, as shown; in Fig. 5. Asypreviously stated, if it is desired to employ a wind-up roll for thecarbon this may be done byattaching thelbracket arms IZOto the end plates 34 and 35 of the auxiliary frame and for this purpose the end plates are provided with holes HI and I22 for the convenientapplication of bracket arms IZIL "I'heupper endsof the bracket arms are slotted at I23 for the reception of a wind-up core I24 for the tally carbon strip. This core may be provided with a knob I25 for manual rotation of the core from time to time to take up red carbon.

With ,the tally strip as described having its leading end secured to'the tally wind-up roll rotationof shaft 3! by the line spacemechanism will cause a-feed of the tally strip and-its accompanying carbon. Thus, each time the platen is line-spaced there will'be a commensurate feed of the tally strip.

By the above described mechanism tally strips having a wide variation in width may be accommodated without any change or additions to the parts shown. Branch parts-inventories are reduced to the lowest possible point yet all feeding and braking or dragging features are preserved and their effectiveness increased. There are no telescopic adjustments to be made or specially shaped cores required.

What is claimed is:

1. A tally roll mechanism for application to a r roller-platen frame of a typewriter having a line spacing mechanism, comprising an auxiliary frame having end plates and tie rods spacing said end plates for a maximum width of tally strip, a wind-up roll extending from one end plate to the other, gearing for driving the wind-up .roll from the line spacing mechanism including a clutch for enabling and disabling the drive, and a pair of members mounted on said tie rods and relatively adjustable within the auxiliary frame to diiferent fixed positions to accommodate different widths of tally strip, said members having means for confining a tally supply roll in desired position lengthwise.

r 2. A tally roll mechanism for application to a roller-platen frame of a typewriter'having a line spacing mechanism, comprising an auxiliary frame having end plates and tie rods spacing said end plates for a maximum width of tally strip,

a wind-up roll extending from one end plate to the other. gearing for driving the wind-up roll from the line spacing mechanism including a clutch for enabling and disabling the drive, and a pair of members mounted on said tie rods and relatively adjustable within the auxiliary frame to diiferent fixed positions to accommodate different widths of tally strip, said members having means for confining a tally supply roll in desired position lengthwise and imposing a drag on its rotation.

3. A tally roll mechanism for'application to :a'roller-platen frame ;of a typewriter .having a line spacing mechanism, comprising an auxiliary frame having end plates and tie rods spacing said end plates for a maximum width of tally strip, a wind-up roll extending from one end plate to the other, gearing for driving the windup roll from the line spacing mechanism including a clutch for enabling and disabling the drive, and a pair of members mounted on said tie rods and relatively adjustable within the auxiliary frame to different fixed positions to accommodate different widths. of tally strip, each of said members having a spring-pressed arm with an inclined face for engaging an end of a tally supply roll assembly. i

4. A tally rollmecham'sm for a platen frame, comprising supporting means mounted on the platen-frame, an auxiliary frame mounted on the supporting means and slidable therealong to any desired position and comprising end plates and tie rods definitely spacing said end plates for a maximum width of tally strip, a pair of locating devices'mounted on said tie rods, means for securing said locating devices in different relatively spaced positions within said auxiliary frame to accommodate different widths of tally strip, and means on each of said locating devices for engaging opposite ends respectively of a tally supply roll assembly to locate and maintain the supply roll in a definite position lengthwise of the supporting means.

, 5.. A tally roll mechanism for a platen-frame, comprising supporting means mounted on the platen-frame, an auxiliary frame mounted on the supporting means and slidable therealong to any desired position and comprising end plates and tie rods definitely spacing said end plates for a maximum width of tally strip, a pair of locating devices mounted on said tie rods, means for securing said locating devices in different relatively spaced positions within said auxiliary frame to accommodate different widths of tally strip, and means comprising a spring-pressed brake arm on each. of said locating devices for engaging opposite ends respectively of a tally supply roll assembly to locate and maintain the supply roll in a definite position lengthwise of the supporting means.

6. A tally roll mechanism for a platen-frame, comprising supporting means mounted on the platen-frame, an auxiliary frame mounted on the supporting means and slidable therealong to any desired position and comprising end plates and tie rods definitely spacing said end plates for a maximum width of tally strip, a pair 'of locating devices mounted on said tie rods, means for securing said locating devices in different relatively spaced positions within said auxiliary frame'to accommodate different widths of tally strip, and means on each of said locating devices comprising a spring-pressed brake arm having an angular engaging face for engaging opposite ends respectively of a tally supply roll assembly to locate and maintain the supply roll in a definite position lengthwise of the supporting means.

'7. A tally roll mechanism for a platen-frame, comprising supporting means mounted on the platen-frame, an auxiliary frame mounted on the supporting means and slidable therealong to any desired position and comprising end plates and tie rods definitely spacing said end plates for a maximum width of tally strip, a pair of locating devices mounted on said tie rods, means for securing said locating devices in different relatively spaced positions within said auxiliary frame to accommodate different widths of tally strip, means on each of said locating devices for engaging opposite ends respectively of a tally supply roll assembly to locate and maintain the supply roll in a definite position lengthwise of the supporting means, a wind-up roll extending between the end plates of said auxiliary frame, and means for rotating said roll.

8. A tally roll mechanism for a platen-frame, comprising supporting means mounted on the platen-frame, an auxiliary frame mounted on the supporting means and slidable therealong to any desired position and comprising end plates and tie rods definitely spacing said end plates for a maximum width of tally strip, a pair of locating devices mounted on said tie rods, means for securing said locating devices in different relatively spaced positions within said auxiliary frame to accommodate different widths of tally strip, means on each of said locating devices comprising a spring-pressed brake arm having an angular engaging face for engaging opposite ends respectively of a tally supply roll assembly to locate and maintain the supply roll in a definite position lengthwise of the supporting means, a wind-up roll between the end plates of said auxiliary frame, and means for rotating said roll.

9. A tally roll mechanism for a platen-frame, comprising supporting means mounted on the platen-frame, an auxiliary frame mounted on the supporting means and slidable therealong to any desired position and comprising end plates and tie rods definitely spacing said end plates for a maximum width of tally strip, a pair of locating devices mounted on said tie rods, means for securing said locating devices in different relatively spaced positions within said auxiliary frame to accommodate different widths of tally strip,

means on each of said locating devices for engaging opposite ends respectively of a tally supply roll assembly to locate and maintain the supply roll in a definite position lengthwise of the supporting means, a platen, line spacing mechanism therefor, a wind-up roll extending between the end plates of said auxiliary frame, and drive gearing including a clutch between the line spacing mechanism and said wind-up roll.

10. The combination with a platen-frame and a roller-platen having line spacing mechanism, of supporting means for an auxiliary frame comprising a pair of rods one of which is adapted for rotation by the line spacing mechanism and the other of which is removable for the positioning of a tally strip supply roll thereon, end pieces for the supply roll loosely mounted on the removable rod, an auxiliary frame on said supporting means adapted to be moved therealong to different locations and comprising end plates and tie rods, a pair of locating devices comprising plates slidable to different positions of relative adjustment on said tie rods and at least one of said pair having a spring pressed arm adapted to bear on one of said supply roll end pieces, a stud projecting inwardly from each of the end plates of said auxiliary frame, spaced bars extending between the studs to provide a wind-up roll for the tally strip, a gear on one of said studs, a gear on the rotatable rod meshing with the first said gear, and clutch means for connecting and disconnecting said rotatable rod with the gear thereon.

MILES H. MANN.

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